Section: System Management Commands (8)
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chpasswd - update passwords in batch mode
reads a list of user name and password pairs from standard input and uses this information to update a group of existing users. Each line is of the format:
By default the supplied password must be in clear-text. Default encryption algorithm is DES. Also the password age will be updated, if present.
This command is intended to be used in a large system environment where many accounts are created at a single time.
The options which apply to the
- -e, --encrypted
Supplied passwords are in encrypted form.
- -h, --help
Display help message and exit.
- -m, --md5
Use MD5 encryption instead DES when the supplied passwords are not encrypted.
Remember to set permissions or umask to prevent readability of unencrypted files by other users.
- SEE ALSO
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